﻿/*!	r_alloc_stack.h
	@brief	アロケータ(スタックタイプ)
Copyright (c) 2009 Yuya Yamaguchi

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/

#ifndef _R_ALLOC_STACK_H_
#define _R_ALLOC_STACK_H_

#include "r_alloc_base.h"
#include "r_alloc_new_delete.h"

//! 高速メモリアロケータ
/*!
*/

class cRAllocStack : public cRAllocBase
{
public:
	//! コンストラクタ
	/*!
	@param	size	[in]
	*/
	cRAllocStack ( const r_cstr name, r_size size, r_si32 align );
	//! デストラクタ
	/*!
	*/
	virtual ~cRAllocStack ( void );
	//! operator new/delete
	RALLOC_PLACEMENT_NEW_DELETE_DECLEARE
public:
	//! メモリ確保
	/*!
	@param	size	[in]	確保するメモリのサイズ
	@retval	void*	確保されたメモリの先頭ポインタ
	*/
	virtual	void*		malloc ( r_size size );
	//! メモリ再確保
	/*!
	@param	pt		[in]	確保済みのメモリ領域の先頭ポインタ
	@param	size	[in]	再確保するメモリのサイズ
	@retval	void*	確保されたメモリの先頭ポインタ
	*/
	virtual void*		realloc ( void *pt, r_size size );
	//! メモリ開放
	/*!
	@param	pointer	[in]
	*/
	virtual	void		free ( void *pointer );
protected:
private:
	//! アリーナ下端アドレス
	void		*addrTop;
	//! スタックの下端
	void		*stackTop;
};

#endif // _R_ALLOC_STACK_H_
